Home / 39,142.76-54,020.64-22,372.52

Finding the Fourth Proportional to 39,142.76, 54,020.64 and 22,372.52

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Solution

The fourth proportional to 39,142.76, 54,020.64 and 22,372.52 is: 30,876.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142.76 : 54,020.64 = 22,372.52 : x
  2. Step 2: Convert to fraction form
    39,142.76/54,020.64 = 22,372.52/x
  3. Step 3: Cross multiply
    39,142.76x = 54,020.64 × 22,372.52
  4. Step 4: Simplify right side
    39,142.76x = 1,208,577,848.81
  5. Step 5: Solve for x
    x = 1,208,577,848.81/39,142.76
  6. Step 6: Final answer
    x = 30,876.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.